Most radio and television stations in the United States are commercial stations, 【26】______ is to say, they earn their money from 【27】______ or commercials. Private companies purchase radio and television 【28】______ from the commercial stations in order to 【29】______ their products. Cable television stations are also 【30】______ stations, though they do not usually have advertisements. 【31】______ watch cable stations, people must pay the cable TV company a certain amount of money each 【32】______ .

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• Television ,the modern wonder of electronics，brings the world into your own home in sight and sound,1. And the word "television" means "seeing far".

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